The average price of diesel in the United States reached an all-time high on September 4, 2026. According to the American Automobile Association (AAA), the average cost of a gallon of diesel was approximately $5.85 on Friday morning. This represents a 58 percent increase compared to previous prices.
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Average Diesel Prices Reach Record Levels in the U.S.
On September 4, 2026, the average price of diesel in the U.S. reached a record high of around $5.85 per gallon, according to AAA. This marks a significant 58 percent increase in cost.
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Diesel prices hit record high
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Average Diesel Prices Reach Record Levels in the U.S.